Echt Tech Services interview questions

Round 1: HR Screening Tell me about yourself. Why do you want to join our company? What do you know about this role? Are you open to relocation or working in shifts? What are your salary expectations? 🔹 Round 2: Coding and Technical Core Java: What are OOPs principles? Difference between == and .equals() What is the difference between ArrayList and LinkedList? Explain HashMap working in Java. What is a constructor? Types? Java 8 Features: What is a lambda expression? Explain Stream API with an example. What is functional interface? Multithreading: Difference between Runnable and Thread What is synchronization? Coding Questions (Simple to Medium): Reverse a string Find missing number in array Check if a number is prime Java program to sort an array SQL Basics: Write a query to fetch all rows from a table. What is the difference between WHERE and HAVING? 🔹 Round 3: Final HR Are you comfortable with the job location? When can you join? Do you have any offers in hand? Why should we hire you?